Ok, Here goes. I have a 2004 130hp with both a Jet pump lower unit and a Prop lower unit. The pump has been on since I bought it about ayear ago. And today I changed the lower unit out to the Prop. Before inserting the drive shaft of the Prop lower unit I tried to turn it with my hands and it was very stiff, almost could not spin it. It was in neutral because I could spin the output shaft freely, and when I put it it to gear I could not spin it at all. But when in neatral the drive shaft was very hard to spin as stated before. Any way after connecting every thing I took it to the river and when I start it there is a loud Whin when in neutral or in gear. Is this normal I did check all lower gear case oil befor taking it to the river. Should this shaft be free to turn when the lower unit is off.